本文整理汇总了Python中languages.Alphabet.tolower方法的典型用法代码示例。如果您正苦于以下问题：Python Alphabet.tolower方法的具体用法？Python Alphabet.tolower怎么用？Python Alphabet.tolower使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类languages.Alphabet的用法示例。
在下文中一共展示了Alphabet.tolower方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: list
# 需要导入模块: from languages import Alphabet [as 别名]
# 或者: from languages.Alphabet import tolower [as 别名]
def list(cls, nick_from, nick_to, max_len = 100):
""" Query for a list of users within a nickname range """
nick_from = u"a" if nick_from is None else Alphabet.tolower(nick_from)
nick_to = u"ö" if nick_to is None else Alphabet.tolower(nick_to)
counter = 0
try:
o_from = Alphabet.full_order.index(nick_from[0])
except:
o_from = 0
try:
o_to = Alphabet.full_order.index(nick_to[0])
except:
o_to = len(Alphabet.full_order) - 1
# We do this by issuing a series of queries, each returning
# nicknames beginning with a particular letter.
# These shenanigans are necessary because NDB maintains its string
# indexes by Unicode ordinal index, which is quite different from
# the actual sort collation order we need. Additionally, the
# indexes are case-sensitive while our query boundaries are not.
# Prepare the list of query letters
q_letters = []
for i in range(o_from, o_to + 1):
# Append the lower case letter
q_letters.append(Alphabet.full_order[i])
# Append the upper case letter
q_letters.append(Alphabet.full_upper[i])
# For aesthetic cleanliness, sort the query letters (in Unicode order)
q_letters.sort()
count = 0
for q_from in q_letters:
q_to = unichr(ord(q_from) + 1)
# logging.info(u"Issuing user query from '{0}' to '{1}'".format(q_from, q_to).encode('latin-1'))
q = cls.query(ndb.AND(UserModel.nickname >= q_from, UserModel.nickname < q_to))
CHUNK_SIZE = 1000 # Individual letters contain >600 users as of 2015-02-12
# logging.info(u"Fetching chunk of {0} users".format(CHUNK_SIZE).encode('latin-1'))
for um in iter_q(q, chunk_size = CHUNK_SIZE):
if not um.inactive:
# This entity matches: return a dict describing it
yield dict(
id = um.key.id(),
nickname = um.nickname,
prefs = um.prefs,
timestamp = um.timestamp,
ready = um.ready,
ready_timed = um.ready_timed,
human_elo = um.human_elo
)
count += 1
if max_len and count >= max_len:
# Reached limit: done
return